The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 1977
Filed:
Jan. 15, 1976
Teunis van Dongen, Eindhoven, NL;
Rudolf Paulus Tijburg, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A semiconductor device having a p-n junction for emitting incoherent radiation. According to the invention, one or several diodes are obtained in the same semiconductor body and starting from a substrate having a diffused or epitaxial layer of opposite conductivity types, by dividing the layer into one or more active regions by one or more grooves and bounding said islands by a cleavage plane at right angles to the p-n junction. Of the grooves, at least a part extends substantially parallel to the second surface. The body and preferably also the grooves are covered with an insulating layer in which a contact window is provided on the active regions and an electrode layer is provided over substantially the whole surface. As a result, small diodes having a large surface brightness are obtained on a body of handleable dimensions having a flat surface with a comparatively low current consumption.